Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Sun, Apr 24, 2011 at 10:21:44PM -0400, Digimer wrote: > Matching LVs are not the same LVs. The LV with your VM is a single item, > and having it treated as such, which you get with clvmd, will ensure > that it's not startable on either node at the same time. Okay, that could be valuable. Thanks. How does that layer with DRBD? Is there a path from a currently-configured and running lvm system to clvmizing it? Red Hat's documentation here: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Logical_Volume_Manager_Administration/LVM_Cluster_Overview.html is only a rough sketch at best. For all the effort going into various cluster and cloud scenarios, it amazes me how little is getting written up well. > RHCS's rgmanager is much simpler than Pacemaker, and is well tested and > already exists. Writing your own scripts is, I'd argue, a fools errand. :) Ah, but running rgmanager on Ubuntu would be even more foolish. My preference for Ubuntu as host is off topic, but it's a strong one. The configuration files alone needed for all the elements of a good Pacemaker install might require more lines of code than a custom script for a well-defined, limited situation like mine. And the script, I'd understand. The configuration file approach gets into trusting voodoo. Not that much of sysadmin work doesn't consist in trusting voodoo.... > I must admit, you lost me somewhat in your reference to emailing people. :) Any notable systems events around here result in notices, whether through Nagios or independently. Best, and thanks again, Whit